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JP5892883B2 - Absorber manufacturing equipment - Google Patents

Absorber manufacturing equipment Download PDF

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Publication number
JP5892883B2
JP5892883B2 JP2012154346A JP2012154346A JP5892883B2 JP 5892883 B2 JP5892883 B2 JP 5892883B2 JP 2012154346 A JP2012154346 A JP 2012154346A JP 2012154346 A JP2012154346 A JP 2012154346A JP 5892883 B2 JP5892883 B2 JP 5892883B2
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suction
pair
region
discharge
air
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JP2014014536A (en
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義浩 中嶋
義浩 中嶋
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Zuiko Corp
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Zuiko Corp
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Priority to JP2012154346A priority Critical patent/JP5892883B2/en
Priority to CN201380036636.5A priority patent/CN104411277B/en
Priority to PCT/JP2013/067628 priority patent/WO2014010427A1/en
Priority to EP13816332.4A priority patent/EP2873396B1/en
Priority to US14/413,627 priority patent/US9551097B2/en
Publication of JP2014014536A publication Critical patent/JP2014014536A/en
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape specially adapted to be worn around the waist, e.g. diapers, nappies
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F13/15617—Making absorbent pads from fibres or pulverulent material with or without treatment of the fibres
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F13/15617—Making absorbent pads from fibres or pulverulent material with or without treatment of the fibres
    • A61F13/15658—Forming continuous, e.g. composite, fibrous webs, e.g. involving the application of pulverulent material on parts thereof
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • D04H1/732—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by fluid current, e.g. air-lay

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Vascular Medicine (AREA)
  • Epidemiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Manufacturing & Machinery (AREA)
  • Textile Engineering (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Nonwoven Fabrics (AREA)

Description

本発明は、紙おむつや生理用ナプキン等の衛生品に用いられる吸収体を製造する吸収体製造装置に関する。   The present invention relates to an absorbent body manufacturing apparatus for manufacturing an absorbent body used for sanitary products such as paper diapers and sanitary napkins.

特許文献１に開示されているように、パルプシートを粉砕した粉砕パルプを空気流に乗せてダクト内に送り込むのと同時に、吸水ポリマーをダクト内に送り込んで粉砕パルプ搬送流と合流させることで混合流を形成し、この混合流を回転積繊ドラムに搬送して、回転積繊ドラムの外周面に形成された吸着成型部に吸着保持させることで、所望の形状の吸収体を形成している。吸着成型部への吸着は、回転積繊ドラムの側部に接続された吸引手段で回転積繊ドラム内の空気を吸引して、回転積繊ドラムの内部を負圧に保持することで行っている。   As disclosed in Patent Document 1, the pulverized pulp obtained by pulverizing the pulp sheet is put in the air stream and sent into the duct. Forming a flow, conveying the mixed flow to a rotary fiber drum, and adsorbing and holding it on an adsorption molding part formed on the outer peripheral surface of the rotary fiber drum, thereby forming an absorber of a desired shape . Adsorption to the adsorption molding unit is performed by sucking air in the rotary fiber drum with suction means connected to the side of the rotary fiber drum and holding the inside of the rotary fiber drum at a negative pressure. Yes.

特開平８−３３７９５４号公報Japanese Patent Laid-Open No. 8-337954

ところで、回転積繊ドラム内の空気を吸引する吸引手段は、通常、回転積繊ドラムの片側の側部に接続されている。そのため、回転積繊ドラムの軸方向を幅方向としたときに、幅の広い吸収体を形成しようとすると、吸引手段が接続された側部側の方が、反対側の側部側に比べて相対的に吸引力が強くなり、吸着成型部の幅方向に均一な吸引力を得ることができず、その結果、吸着成型部で成型される吸収体の幅方向の厚みにムラが生じるという問題がある。   By the way, the suction means for sucking the air in the rotary fiber drum is usually connected to one side of the rotary fiber drum. Therefore, when the axial direction of the rotary fiber drum is the width direction, when trying to form a wide absorbent body, the side portion side to which the suction means is connected is compared to the opposite side portion side. The suction force becomes relatively strong, and a uniform suction force cannot be obtained in the width direction of the adsorption molding part, resulting in unevenness in the thickness in the width direction of the absorber molded in the adsorption molding part. There is.

本発明の目的は、吸収体の幅方向の厚みを均一にすることが可能な吸収体製造装置を提供することである。   The objective of this invention is providing the absorber manufacturing apparatus which can make the thickness of the width direction of an absorber uniform.

本発明における吸収体製造装置は、粉砕パルプを所望の形状の吸収体に成型する吸着成型部を有する回転積繊ドラムを備えた吸収体製造装置において、前記回転積繊ドラムは、外周面に前記吸着成型部が形成された筒部と、前記筒部の両端を閉塞する一対の側部と、を有し、前記回転積繊ドラム内を、吸引領域と排出領域とを含む複数の領域に仕切る仕切り板と、前記吸引領域に連通するように前記一対の側部にそれぞれ接続されて、前記吸引領域内の空気を吸引することで前記吸着成型部の外周面側から前記筒部の内部に向かう空気流を生じさせる一対の吸引手段と、前記排出領域に連通するように前記一対の側部にそれぞれ接続されて、前記排出領域内に圧縮空気を供給する一対の供給手段と、前記排出領域内に設けられて前記吸着成型部の外周面側が開口した断面コ字状に形成され、前記圧縮空気が前記筒部の内部から前記吸着成型部の外周面側に向かって排出されるように圧縮空気を案内する排出ガイドと、を有し、前記一対の供給手段の各々は前記排出ガイドの内部に連通しており、前記回転積繊ドラムの軸方向において、前記排出ガイドの幅は前記吸着成型部の幅よりも広いことを特徴とする。 The absorbent body manufacturing apparatus according to the present invention is an absorbent body manufacturing apparatus including a rotary fiber stacking drum having an adsorption molding unit that molds pulverized pulp into an absorbent body having a desired shape. It has a cylinder part in which an adsorption molding part was formed, and a pair of side parts which block up both ends of the cylinder part, and divides the inside of the rotary fiber drum into a plurality of areas including a suction area and a discharge area A partition plate is connected to the pair of side portions so as to communicate with the suction region , and the air in the suction region is sucked toward the inside of the cylindrical portion from the outer peripheral surface side of the adsorption molding portion. a pair of suction means for creating an air flow, respectively connected to said pair of side portions so as to communicate with the discharge region, a pair of supply means for supplying compressed air to the discharge area, prior Symbol discharge region the suction mold provided within The outer peripheral surface side is formed in a U-shaped cross section having an opening, and a discharge guide for guiding the compressed air to the compressed air is discharged toward the outer surface side of the suction molding portion from the interior of said tubular portion Yes, and each of said pair of feeding means is in communication with the interior of the discharge guide in the axial direction of the rotary product fiber drum, a width of the discharge guide, wherein a wider than the width of the suction mold section And

上記の構成によれば、回転積繊ドラムの両側部にそれぞれ接続された吸引手段の各々で回転積繊ドラム内の空気を吸引することで、幅の広い吸収体を形成する場合であっても、吸着成型部の幅方向に均一な吸引力を得ることができる。これにより、吸着成型部で成型される吸収体の幅方向の厚みを均一にすることができる。ここで、幅方向とは回転積繊ドラムの軸方向を指す。また、回転積繊ドラムの両側部にそれぞれ接続された供給手段の各々から排出領域内に圧縮空気を供給する。通常、供給手段は、回転積繊ドラムの片側の側部に接続されている。そのため、圧縮空気による押出力により幅の広い吸収体を吸着成型部内から取り出そうとすると、供給手段が接続された側部側の方が、反対側の側部側に比べて相対的に押出力が強くなり、吸着成型部の幅方向に均一な押出力を得ることができず、吸着成型部内から吸収体をうまく取り出すことができない。そこで、回転積繊ドラムの両側部に供給手段をそれぞれ接続して排出領域内に圧縮空気をそれぞれ供給することで、幅の広い吸収体を形成した場合であっても、吸着成型部の幅方向に均一な押出力を得ることができる。これにより、吸着成型部内から吸収体を好適に取り出すことができる。 According to said structure, even if it is a case where a wide absorber is formed by attracting | sucking the air in a rotary fiber drum with each of the suction means respectively connected to the both sides of the rotary fiber drum. A uniform suction force can be obtained in the width direction of the adsorption molded portion. Thereby, the thickness of the width direction of the absorber shape | molded by an adsorption molding part can be made uniform. Here, the width direction refers to the axial direction of the rotary fiber drum. Further, compressed air is supplied into the discharge region from each of the supply means connected to both sides of the rotary fiber pile. Usually, the supply means is connected to one side of the rotary fiber drum. Therefore, when trying to take out a wide absorbent body from the inside of the adsorption molding part by the pushing force by the compressed air, the pushing force on the side part to which the supply means is connected is relatively larger than that on the side part on the opposite side. It becomes strong, and a uniform pushing force cannot be obtained in the width direction of the adsorption molding part, and the absorber cannot be taken out from the adsorption molding part well. Therefore, even when a wide absorbent body is formed by connecting supply means to both sides of the rotary fiber drum and supplying compressed air into the discharge area, the width direction of the adsorption molding part A uniform pressing force can be obtained. Thereby, an absorber can be suitably taken out from the inside of the adsorption molding part.

また、本発明における吸収体製造装置において、前記一対の側部は、回転不能に設けられているとともに、前記筒部は、回転可能に設けられていてよい。上記の構成によれば、回転する筒部に対して一対の側部は回転しないので、一対の側部の各々に吸引手段を容易に接続することができる。   In the absorbent body manufacturing apparatus according to the present invention, the pair of side portions may be provided so as not to rotate, and the cylindrical portion may be provided so as to be rotatable. According to said structure, since a pair of side part does not rotate with respect to the rotating cylinder part, a suction means can be easily connected to each of a pair of side part.

本発明の吸収体製造装置によると、吸着成型部の幅方向に均一な吸引力を得ることができるので、吸着成型部で成型される吸収体の幅方向の厚みを均一にすることができる。   According to the absorbent body manufacturing apparatus of the present invention, since a uniform suction force can be obtained in the width direction of the adsorption molding portion, the thickness in the width direction of the absorber molded in the adsorption molding portion can be made uniform.

吸収体製造装置の模式図である。It is a schematic diagram of an absorber manufacturing apparatus. 図１のＡ−Ａ断面図である。It is AA sectional drawing of FIG.

以下、本発明の好適な実施の形態について、図面を参照しつつ説明する。   Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

（吸収体製造装置の構成）
本実施形態による吸収体製造装置１は、図１に示すように、原料であるパルプシートを粉砕して粉砕パルプとする粉砕機３と、粉砕パルプが空気流に乗って搬送される（粉砕パルプが空気搬送される）ダクト４と、粉砕パルプを所望の形状の吸収体に成型する回転積繊ドラム７と、回転積繊ドラム７で形成された吸収体を受け取るバキュームコンベア８と、を備えている。 (Configuration of absorber manufacturing apparatus)
As shown in FIG. 1, the absorbent body manufacturing apparatus 1 according to the present embodiment pulverizes a pulp sheet as a raw material into a pulverized pulp, and the pulverized pulp is carried in an air stream (pulverized pulp). A duct 4 that is conveyed by air), a rotary fiber drum 7 that forms pulverized pulp into an absorbent body of a desired shape, and a vacuum conveyor 8 that receives the absorbent body formed of the rotary fiber drum 7. Yes.

粉砕機３は、ダクト４の一端側開口部４ａに取り付けられている。粉砕機３には、一対の送りローラ（図示せず）からパルプシートが送り込まれる。粉砕機３のロール表面には複数枚の回転刃３ａ，３ａ・・・が設けられており、供給されたパルプシートを細かく粉砕する。パルプシートが粉砕された粉砕パルプは、ダクト４内に生じる空気流に乗ってダクト４内を回転積繊ドラム７に向かって空気搬送される。   The pulverizer 3 is attached to one end side opening 4 a of the duct 4. A pulp sheet is fed into the pulverizer 3 from a pair of feed rollers (not shown). A plurality of rotary blades 3a, 3a,... Are provided on the roll surface of the pulverizer 3, and the supplied pulp sheet is finely pulverized. The pulverized pulp obtained by pulverizing the pulp sheet rides on the air flow generated in the duct 4 and is conveyed by air toward the rotary fiber drum 7 in the duct 4.

ダクト４の両端間における所望の位置には、吸水ポリマー供給管（図示せず）が取り付けられており、この吸水ポリマー供給管を通ってダクト４内に吸水ポリマーが供給される。ダクト４内に供給された吸水ポリマーがダクト４の内部に拡散することで、ダクト４内には粉砕パルプと吸水ポリマーとが均一に混合された混合流が生じる。この混合流は、回転積繊ドラム７に向かって空気搬送されることになる。   A water-absorbing polymer supply pipe (not shown) is attached at a desired position between both ends of the duct 4, and the water-absorbing polymer is supplied into the duct 4 through the water-absorbing polymer supply pipe. As the water-absorbing polymer supplied into the duct 4 diffuses into the duct 4, a mixed flow in which the pulverized pulp and the water-absorbing polymer are uniformly mixed is generated in the duct 4. This mixed flow is conveyed by air toward the rotary fiber drum 7.

回転積繊ドラム７は、回転可能に設けられた筒部１２と、回転不能に設けられて筒部１２の両端を閉塞する一対の側部１１と、を有している。回転積繊ドラム７は、筒部１２が回転可能な状態でダクト４の他端側開口部４ｂに圧接されている。一対の側部１１の各々には、２つの吸引ダクト２１と、１つの給気ダクト２２とが接続されている。なお、吸引ダクト２１や給気ダクト２２の数はこれに限定されず、例えば吸引ダクト２１の数は３つ以上であってもよい。   The rotary fiber drum 7 includes a cylindrical portion 12 provided rotatably and a pair of side portions 11 provided non-rotatably to close both ends of the cylindrical portion 12. The rotary fiber drum 7 is in pressure contact with the other end side opening 4b of the duct 4 in a state in which the cylindrical portion 12 is rotatable. Two suction ducts 21 and one air supply duct 22 are connected to each of the pair of side portions 11. In addition, the number of the suction ducts 21 and the air supply ducts 22 is not limited to this, For example, the number of the suction ducts 21 may be three or more.

また、筒部１２の外周面には、目的とする吸収体の形状に応じた通気可能な金属メッシュ製の吸着成型部１２ａが形成されている。この吸着成型部１２ａに、粉砕パルプと吸水ポリマーとの混合流を吸着保持させることで、所望の形状の吸収体が形成されることとなる。筒部１２は、図示しない駆動手段により矢印の方向に一定速度で連続的に回転される。   In addition, a suction-molded portion 12a made of a metal mesh that can be ventilated according to the shape of the target absorber is formed on the outer peripheral surface of the cylindrical portion 12. An absorbent body having a desired shape is formed by adsorbing and holding the mixed flow of the pulverized pulp and the water-absorbing polymer in the adsorption molding portion 12a. The cylinder part 12 is continuously rotated at a constant speed in the direction of the arrow by a driving means (not shown).

ここで、回転積繊ドラム７の内部は、複数の仕切り板１３により、複数の領域に仕切られている。具体的には、回転積繊ドラム７の内部は、上方に開口してダクト４の他端側開口部４ｂに対向する２つの吸引領域１４ａ，１４ｂと、下方に開口してバキュームコンベア８に対向する１つの排出領域１４ｃと、その他の領域とに仕切られている。吸引領域１４ａの周方向の長さは、他端側開口部４ｂの周方向の長さの半分である。また、吸引領域１４ｂの周方向の長さは、他端側開口部４ｂの周方向の長さの半分である。   Here, the inside of the rotary stacking drum 7 is partitioned into a plurality of regions by a plurality of partition plates 13. Specifically, the inside of the rotary fiber drum 7 is opened upward and faces the two suction areas 14a and 14b facing the other end side opening 4b of the duct 4, and opened downward and faces the vacuum conveyor 8. Is divided into one discharge area 14c and other areas. The circumferential length of the suction region 14a is half of the circumferential length of the other end side opening 4b. The circumferential length of the suction region 14b is half of the circumferential length of the other end side opening 4b.

隣り合う２つの吸引領域１４ａ，１４ｂの各々には、一端が吸引ファン等の吸引装置２４（図２参照）に接続された吸引ダクト２１の他端が連通されている。吸引装置２４により吸引ダクト２１を介して吸引領域１４ａ内の空気が吸引されることにより、吸引領域１４ａの内部は負圧に保持される。同様に、吸引装置２４により吸引ダクト２１を介して吸引領域１４ｂ内の空気が吸引されることにより、吸引領域１４ｂの内部は負圧に保持される。吸引ダクト２１と吸引装置２４とは、吸引手段３１を構成している。吸引手段３１については後述する。   Each of the two adjacent suction regions 14a and 14b communicates with the other end of a suction duct 21 having one end connected to a suction device 24 (see FIG. 2) such as a suction fan. When the air in the suction area 14a is sucked by the suction device 24 through the suction duct 21, the inside of the suction area 14a is maintained at a negative pressure. Similarly, when the air in the suction area 14b is sucked by the suction device 24 through the suction duct 21, the inside of the suction area 14b is maintained at a negative pressure. The suction duct 21 and the suction device 24 constitute a suction means 31. The suction means 31 will be described later.

このような構成において、吸引ダクト２１を介して吸引領域１４ａ内および吸引領域１４ｂ内の空気が吸引されて、吸引領域１４ａの内部および吸引領域１４ｂの内部が負圧に保持されると、２つの吸引領域１４ａ，１４ｂに対向する他端側開口部４ｂを有するダクト４内に、吸着成型部１２ａの外周面側から筒部１２の内部に向かう空気流が生じる。この空気流により、粉砕パルプと吸水ポリマーとの混合流がダクト４内を回転積繊ドラム７に向かって空気搬送されることとなる。   In such a configuration, when the air in the suction region 14a and the suction region 14b is sucked through the suction duct 21 and the inside of the suction region 14a and the inside of the suction region 14b are held at negative pressure, In the duct 4 having the other end side opening 4b facing the suction regions 14a, 14b, an air flow is generated from the outer peripheral surface side of the adsorption molding portion 12a toward the inside of the cylinder portion 12. By this air flow, the mixed flow of the pulverized pulp and the water-absorbing polymer is conveyed by air in the duct 4 toward the rotary fiber drum 7.

なお、形成する吸収体の長さ（吸着成型部１２ａの周方向の長さ）に応じて、吸引領域１４ａおよび吸引領域１４ｂの一方または両方の内部が負圧にされる。即ち、形成する吸収体の長さが比較的短い場合には、吸引領域１４ａおよび吸引領域１４ｂのどちらか一方の内部が負圧にされる一方、形成する吸収体の長さが比較的長い場合には、吸引領域１４ａおよび吸引領域１４ｂの両方の内部が負圧にされる。これにより、所望の長さの吸収体が形成される。   Depending on the length of the absorber to be formed (the length in the circumferential direction of the suction molding portion 12a), the inside of one or both of the suction region 14a and the suction region 14b is set to a negative pressure. That is, when the length of the absorber to be formed is relatively short, the inside of one of the suction region 14a and the suction region 14b is set to a negative pressure, while the length of the absorber to be formed is relatively long. In this case, the inside of both the suction region 14a and the suction region 14b is set to a negative pressure. Thereby, the absorber of desired length is formed.

また、排出領域１４ｃには、一端がコンプレッサ等の給気装置２５（図２参照）に接続された給気ダクト２２の他端が連通されている。給気装置２５から給気ダクト２２を介して排出領域１４ｃ内に圧縮空気が供給されることにより、排出領域１４ｃの内部は正圧とされる。給気ダクト２２と給気装置２５とは、供給手段３２を構成している。供給手段３２については後述する。   Further, the other end of an air supply duct 22 whose one end is connected to an air supply device 25 (see FIG. 2) such as a compressor is communicated with the discharge region 14c. By supplying compressed air from the air supply device 25 into the discharge area 14c through the air supply duct 22, the inside of the discharge area 14c is set to a positive pressure. The air supply duct 22 and the air supply device 25 constitute supply means 32. The supply means 32 will be described later.

また、排出領域１４ｃ内には、排出領域１４ｃ内の圧縮空気が筒部１２の内部から吸着成型部１２ａの外周面側に向かって排出されるように圧縮空気を案内する排出ガイド２３が設けられている。この排出ガイド２３は、圧縮空気をバキュームコンベア８の方に案内するように、図中下方にのみ開口した断面コ字状に形成されている。   Further, in the discharge area 14c, a discharge guide 23 is provided for guiding the compressed air so that the compressed air in the discharge area 14c is discharged from the inside of the cylindrical portion 12 toward the outer peripheral surface side of the adsorption molding portion 12a. ing. The discharge guide 23 is formed in a U-shaped cross section that is open only in the lower part of the figure so as to guide the compressed air toward the vacuum conveyor 8.

給気ダクト２２の他端は、側部１１の開口を貫通して排出ガイド２３の側部開口に接続されている。これにより、給気ダクト２２は排出ガイド２３の内部に連通している。排出ガイド２３の幅（紙面に直交する方向の距離）は、吸着成型部１２ａの幅よりも広くされている。   The other end of the air supply duct 22 passes through the opening of the side part 11 and is connected to the side part opening of the discharge guide 23. Thereby, the air supply duct 22 communicates with the inside of the discharge guide 23. The width of the discharge guide 23 (distance in the direction perpendicular to the paper surface) is made wider than the width of the suction molding part 12a.

このような構成において、給気ダクト２２を介して排出領域１４ｃ内に圧縮空気が供給されて、排出領域１４ｃの内部が正圧とされると、排出ガイド２３に案内された圧縮空気が、筒部１２の内部から吸着成型部１２ａの外周面側に向かって排出される。即ち、排出ガイド２３に案内された圧縮空気が、排出領域１４ｃに対向するバキュームコンベア８に向かって排出される。この圧縮空気による押出力と、後述するバキュームコンベア８の吸引力とにより、吸着成型部１２ａ内の吸収体はバキュームコンベア８に受け渡されることとなる。   In such a configuration, when compressed air is supplied into the discharge region 14c through the air supply duct 22 and the inside of the discharge region 14c is set to a positive pressure, the compressed air guided by the discharge guide 23 is compressed into the cylinder. It is discharged from the inside of the part 12 toward the outer peripheral surface side of the adsorption molding part 12a. That is, the compressed air guided by the discharge guide 23 is discharged toward the vacuum conveyor 8 facing the discharge area 14c. The absorber in the suction molding part 12a is delivered to the vacuum conveyor 8 by the pushing force by the compressed air and the suction force of the vacuum conveyor 8 described later.

バキュームコンベア８は、吸収体支持用の台紙（図示せず）を介して、回転積繊ドラム７の一部に当接されている。バキュームコンベア８は、回転積繊ドラム７に当接する位置に対向する内部に、吸引力を生じさせる吸引装置（図示せず）を備えている。回転積繊ドラム７の筒部１２の吸着成型部１２ａに形成された吸収体は、バキュームコンベア８に向かって排出される圧縮空気による押出力と、バキュームコンベア８の吸引力とにより、台紙上に受け渡されることとなる。   The vacuum conveyor 8 is in contact with a part of the rotary fiber drum 7 via an absorbent-supporting mount (not shown). The vacuum conveyor 8 includes a suction device (not shown) that generates a suction force inside the position facing the position where it abuts against the rotary fiber drum 7. The absorbent body formed in the suction molding portion 12a of the cylindrical portion 12 of the rotary fiber drum 7 is placed on the mount by the pushing force by the compressed air discharged toward the vacuum conveyor 8 and the suction force of the vacuum conveyor 8. It will be handed over.

（吸引手段）
図１のＡ−Ａ断面図である図２に示すように、吸引手段３１は、吸引領域１４ｂに連通する吸引ダクト２１と、吸引ダクト２１を介して吸引領域１４ｂ内の空気を吸引する吸引装置２４とを有している。吸引領域１４ａに対しても同様の吸引手段３１が設けられている。吸引装置２４は、回転積繊ドラム７の外部に回転不能に設けられている。吸引ダクト２１の一端は、吸引装置２４に接続されており、吸引ダクト２１の他端は、回転積繊ドラム７の側部１１に設けられた開口に接続されている。 (Suction means)
As shown in FIG. 2, which is a cross-sectional view taken along the line AA of FIG. 1, the suction means 31 includes a suction duct 21 communicating with the suction region 14 b, and a suction device that sucks air in the suction region 14 b through the suction duct 21. 24. A similar suction means 31 is also provided for the suction region 14a. The suction device 24 is provided outside the rotary fiber drum 7 so as not to rotate. One end of the suction duct 21 is connected to the suction device 24, and the other end of the suction duct 21 is connected to an opening provided in the side portion 11 of the rotary fiber drum 7.

ここで、本実施形態において、吸引領域１４ｂに連通する吸引手段３１は、回転積繊ドラム７の軸方向の一端側および他端側にそれぞれ設けられている。そして、吸引手段３１が備える吸引ダクト２１が、回転積繊ドラム７の２つの側部１１にそれぞれ接続されている。吸引領域１４ａについても同様である。   Here, in the present embodiment, the suction means 31 communicating with the suction region 14 b is provided on one end side and the other end side of the rotary fiber drum 7 in the axial direction. And the suction duct 21 with which the suction means 31 is provided is connected to the two side parts 11 of the rotary fiber drum 7 respectively. The same applies to the suction region 14a.

ここで、吸引手段３１が回転積繊ドラム７の片側の側部１１にのみ接続されている場合、回転積繊ドラム７の軸方向を幅方向としたときに、幅の広い吸収体を形成しようとすると、吸引手段３１が接続された側部１１側の方が、反対側の側部１１側に比べて相対的に吸引力が強くなり、吸着成型部１２ａの幅方向に均一な吸引力を得ることができず、その結果、吸着成型部１２ａで成型される吸収体の幅方向の厚みにムラが生じる。   Here, when the suction means 31 is connected only to the side portion 11 on one side of the rotary fiber drum 7, when the axial direction of the rotary fiber drum 7 is the width direction, a wide absorbent body is formed. Then, the side portion 11 side to which the suction means 31 is connected has a relatively stronger suction force than the opposite side portion 11 side, and a uniform suction force in the width direction of the suction molding portion 12a. As a result, unevenness occurs in the thickness in the width direction of the absorber molded by the adsorption molding part 12a.

そこで、回転積繊ドラム７の２つの側部１１にそれぞれ接続された吸引手段３１の各々で回転積繊ドラム７（吸引領域１４ａ，１４ｂ）内の空気を吸引することで、幅の広い吸収体を形成する場合であっても、吸着成型部１２ａの幅方向に均一な吸引力を得ることができる。これにより、吸着成型部１２ａで成型される吸収体の幅方向の厚みを均一にすることができる。   Therefore, a wide absorbent body is obtained by sucking the air in the rotary product drum 7 (suction regions 14a, 14b) by the suction means 31 respectively connected to the two side portions 11 of the rotary product drum 7. Even in the case of forming, a uniform suction force can be obtained in the width direction of the adsorption molded portion 12a. Thereby, the thickness of the width direction of the absorber shape | molded by the adsorption | suction shaping | molding part 12a can be made uniform.

また、回転する筒部１２に対して一対の側部１１は回転しないので、一対の側部１１の各々に吸引ダクト２１を容易に接続することができる。   Further, since the pair of side portions 11 does not rotate with respect to the rotating cylinder portion 12, the suction duct 21 can be easily connected to each of the pair of side portions 11.

（供給手段）
また、図２に示すように、供給手段３２は、排出領域１４ｃ内に設けられた排出ガイド２３に連通する給気ダクト２２と、給気ダクト２２を介して排出ガイド２３の内部に圧縮空気を供給する給気装置２５とを有している。給気装置２５は、回転積繊ドラム７の外部に回転不能に設けられている。給気ダクト２２の一端は、給気装置２５に接続されており、給気ダクト２２の他端は、回転積繊ドラム７の側部１１に設けられた開口を貫通して排出ガイド２３の側部開口に接続されている。 (Supply means)
In addition, as shown in FIG. 2, the supply means 32 includes an air supply duct 22 communicating with the discharge guide 23 provided in the discharge area 14 c, and compressed air inside the discharge guide 23 via the air supply duct 22. And an air supply device 25 to be supplied. The air supply device 25 is provided outside the rotary fiber stacking drum 7 so as not to rotate. One end of the air supply duct 22 is connected to the air supply device 25, and the other end of the air supply duct 22 passes through an opening provided in the side portion 11 of the rotary fiber drum 7 and is on the side of the discharge guide 23. Connected to the opening.

ここで、本実施形態において、供給手段３２は、回転積繊ドラム７の軸方向の一端側および他端側にそれぞれ設けられている。そして、供給手段３２が備える給気ダクト２２が、回転積繊ドラム７の２つの側部１１にそれぞれ接続されている。   Here, in the present embodiment, the supply means 32 is provided on one end side and the other end side in the axial direction of the rotary fiber drum 7. And the air supply duct 22 with which the supply means 32 is provided is connected to the two side parts 11 of the rotary fiber drum 7, respectively.

ここで、供給手段３２が回転積繊ドラム７の片側の側部１１にのみ接続されている場合、圧縮空気による押出力により幅の広い吸収体を吸着成型部１２ａ内から取り出そうとすると、供給手段３２が接続された側部１１側の方が、反対側の側部１１側に比べて相対的に押出力が強くなり、吸着成型部１２ａの幅方向に均一な押出力を得ることができず、吸着成型部１２ａ内から吸収体をうまく取り出すことができない。   Here, when the supply means 32 is connected only to the side portion 11 on one side of the rotary fiber drum 7, when trying to take out a wide absorbent body from the inside of the adsorption molding portion 12 a by pushing force by compressed air, the supply means The side portion 11 side to which 32 is connected is relatively stronger than the opposite side portion 11 side, and a uniform pushing force cannot be obtained in the width direction of the adsorption molding portion 12a. The absorber cannot be taken out well from the inside of the adsorption molding part 12a.

そこで、回転積繊ドラム７の２つの側部１１に供給手段３２をそれぞれ接続して排出領域１４ｃ内に圧縮空気をそれぞれ供給することで、幅の広い吸収体を形成した場合であっても、吸着成型部１２ａの幅方向に均一な押出力を得ることができる。これにより、吸着成型部１２ａ内から吸収体を好適に取り出すことができる。   Therefore, even when a wide absorbent body is formed by connecting the supply means 32 to the two side portions 11 of the rotary stacking drum 7 and supplying compressed air to the discharge region 14c, A uniform pushing force can be obtained in the width direction of the adsorption molding part 12a. Thereby, an absorber can be suitably taken out from the adsorption molding part 12a.

（効果）
以上に述べたように、本実施形態に係る吸収体製造装置１によると、回転積繊ドラム７の２つの側部１１にそれぞれ接続された吸引手段３１の各々で回転積繊ドラム７（吸引領域１４ａ，１４ｂ）内の空気を吸引することで、幅の広い吸収体を形成する場合であっても、吸着成型部１２ａの幅方向に均一な吸引力を得ることができる。これにより、吸着成型部１２ａで成型される吸収体の幅方向の厚みを均一にすることができる。 (effect)
As described above, according to the absorbent body manufacturing apparatus 1 according to the present embodiment, each of the suction unit 31 connected to the two side portions 11 of the rotary fiber drum 7 has the rotational fiber drum 7 (suction area). By sucking the air in 14a, 14b), a uniform suction force can be obtained in the width direction of the adsorption molded portion 12a even when a wide absorbent body is formed. Thereby, the thickness of the width direction of the absorber shape | molded by the adsorption | suction shaping | molding part 12a can be made uniform.

また、回転する筒部１２に対して一対の側部１１は回転しないので、一対の側部１１の各々に吸引手段３１を容易に接続することができる。   Further, since the pair of side portions 11 does not rotate with respect to the rotating cylinder portion 12, the suction means 31 can be easily connected to each of the pair of side portions 11.

また、回転積繊ドラム７の２つの側部１１に供給手段３２をそれぞれ接続して排出領域１４ｃ内に圧縮空気をそれぞれ供給することで、幅の広い吸収体を形成した場合であっても、吸着成型部１２ａの幅方向に均一な押出力を得ることができる。これにより、吸着成型部１２ａ内から吸収体を好適に取り出すことができる。   In addition, even when a wide absorbent body is formed by connecting the supply means 32 to the two side portions 11 of the rotary fiber stacking drum 7 and supplying compressed air to the discharge region 14c, A uniform pushing force can be obtained in the width direction of the adsorption molding part 12a. Thereby, an absorber can be suitably taken out from the adsorption molding part 12a.

（本実施形態の変形例）
以上、本発明の実施形態を説明したが、具体例を例示したに過ぎず、特に本発明を限定するものではなく、具体的構成などは、適宜設計変更可能である。また、発明の実施の形態に記載された、作用及び効果は、本発明から生じる最も好適な作用及び効果を列挙したに過ぎず、本発明による作用及び効果は、本発明の実施の形態に記載されたものに限定されるものではない。 (Modification of this embodiment)
The embodiment of the present invention has been described above, but only specific examples are illustrated, and the present invention is not particularly limited, and the specific configuration and the like can be appropriately changed in design. Further, the actions and effects described in the embodiments of the invention only list the most preferable actions and effects resulting from the present invention, and the actions and effects according to the present invention are described in the embodiments of the present invention. It is not limited to what was done.

例えば、図１において点線で示したように、吸引ダクト２１を、ダクト４の他端側開口部４ｂから十分に離隔させてもよい。このようにすれば、吸引ダクト２１が他端側開口部４ｂに近接している場合に比べて、吸着成型部１２ａを通過する空気の流れをより均一にすることができる。   For example, as shown by the dotted line in FIG. 1, the suction duct 21 may be sufficiently separated from the other end side opening 4 b of the duct 4. In this way, the flow of air passing through the adsorption molding portion 12a can be made more uniform than when the suction duct 21 is close to the other end side opening 4b.

１ 吸収体製造装置
３ 粉砕機
３ａ 回転刃
４ ダクト
４ａ 一端側開口部
４ｂ 他端側開口部
７ 回転積繊ドラム
８ バキュームコンベア
１１ 側部
１２ 筒部
１２ａ 吸着成型部
１３ 仕切り板
１４ａ，１４ｂ 吸引領域
１４ｃ 排出領域
２１ 吸引ダクト
２２ 給気ダクト
２３ 排出ガイド
２４ 吸引装置
２５ 給気装置
３１ 吸引手段
３２ 供給手段 DESCRIPTION OF SYMBOLS 1 Absorber manufacturing apparatus 3 Crusher 3a Rotary blade 4 Duct 4a One end side opening 4b Other end side opening 7 Rotating fiber drum 8 Vacuum conveyor 11 Side part 12 Tube part 12a Adsorption molding part 13 Partition plates 14a and 14b Suction area 14c Discharge area 21 Suction duct 22 Air supply duct 23 Discharge guide 24 Suction device 25 Air supply device 31 Suction means 32 Supply means

Claims (2)

粉砕パルプを所望の形状の吸収体に成型する吸着成型部を有する回転積繊ドラムを備えた吸収体製造装置において、
前記回転積繊ドラムは、
外周面に前記吸着成型部が形成された筒部と、
前記筒部の両端を閉塞する一対の側部と、
を有し、
前記回転積繊ドラム内を、吸引領域と排出領域とを含む複数の領域に仕切る仕切り板と、
前記吸引領域に連通するように前記一対の側部にそれぞれ接続されて、前記吸引領域内の空気を吸引することで前記吸着成型部の外周面側から前記筒部の内部に向かう空気流を生じさせる一対の吸引手段と、
前記排出領域に連通するように前記一対の側部にそれぞれ接続されて、前記排出領域内に圧縮空気を供給する一対の供給手段と、
前記排出領域内に設けられて前記吸着成型部の外周面側が開口した断面コ字状に形成され、前記圧縮空気が前記筒部の内部から前記吸着成型部の外周面側に向かって排出されるように圧縮空気を案内する排出ガイドと、
を有し、
前記一対の供給手段の各々は前記排出ガイドの内部に連通しており、
前記回転積繊ドラムの軸方向において、前記排出ガイドの幅は前記吸着成型部の幅よりも広いことを特徴とする吸収体製造装置。 In an absorbent body manufacturing apparatus including a rotary fiber drum having an adsorption molding unit that molds pulverized pulp into an absorbent body of a desired shape,
The spinning fiber drum is
A cylinder part in which the adsorption molding part is formed on the outer peripheral surface;
A pair of side portions closing both ends of the cylindrical portion;
Have
A partition plate for partitioning the inside of the rotary fiber stack drum into a plurality of regions including a suction region and a discharge region;
The air flows from the outer peripheral surface side of the adsorption molding portion to the inside of the cylindrical portion by suctioning the air in the suction region , connected to the pair of side portions so as to communicate with the suction region . A pair of suction means for causing;
A pair of supply means connected to the pair of side portions so as to communicate with the discharge region , and supplying compressed air into the discharge region ;
Formed prior Symbol discharge area a U-shaped outer peripheral surface side of the suction molding portion is open is provided in the compressed air is discharged toward the interior of the tubular portion on the outer peripheral surface of the suction mold section A discharge guide for guiding the compressed air so that
I have a,
Each of the pair of supply means communicates with the inside of the discharge guide,
The absorbent body manufacturing apparatus according to claim 1 , wherein a width of the discharge guide is wider than a width of the adsorption molding portion in the axial direction of the rotary fiber drum . 前記一対の側部は、回転不能に設けられているとともに、
前記筒部は、回転可能に設けられていることを特徴とする請求項１に記載の吸収体製造装置。 The pair of side portions are provided so as not to rotate,
The absorber manufacturing apparatus according to claim 1, wherein the cylindrical portion is rotatably provided.
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PCT/JP2013/067628 WO2014010427A1 (en) 2012-07-10 2013-06-27 Device for producing absorbent body
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